Version 0.1

[piyanatk]

This PR contains significant reformatting of the Python codes to compile with PEP8, improvement on the packaging, and the use of setuptools-scm to automate versioning.

Code Styling

• sparse_2level was renamed to Sparse2Level to compile with PEP8 (i.e., class must use CamelCase).
• np namespace is used instead of numpy.
• Various PEP8 formatting.

Packaging

• ctypes wrapped functions were migrated from the main Python code, corrcal.py, to wrapper.py. This separate the low-level, ctypes wrapped, functions from the high-level Python interface and should make them easier to maintain in a long run.

Versioning

• setuptools-scm was implemented, as suggested by @steven-murray, to automate code versioning based on the git hash. See https://pypi.org/project/setuptools-scm/#description.

Other

• The do_timing code blocks in corrcal.py seem to be a hack to time the codes. They are probably not being used, and there are better way to do profiling. Therefore, we commented out these lines for now and will removed them in the future.

One thing that has not been fixed is duplicated code fragmentation. There are many duplicated blocks of codes in corrcal.py. These lines are redundant and prone to bugs. Fixing them will require thorough understanding of how the codes work, so it will take some time.

[piyanatk]

New commits:

• fa66806, fb43cfe, 0afd1bc, 33290bb, and 1d0c174 migrate ctypes library wrapping from corrcal.py to a separate wrapper.py module.
• the C codes were renamed to corrcal_c_funcs.c and corrcal_c_funcs.h, and the output library was renamed to c_corrcal*.so to make them more clear.